Spot the correct spelling of a 24-hour biological cycle.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Circadian.
Correct Spelling: Circadian
Meaning: Relating to biological processes that occur regularly at about 24-hour intervals, even in the absence of external cues like sunlight.
Etymology: The word comes from the Latin words 'circa' (meaning 'about') and 'dies' (meaning 'day').
Hence, the chosen option is correct.